1 [(4 chlorophenyl)sulfonyl]piperidin 4 carbohydrazide 1 1,3,4-Oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 (allylthio) 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 (benzylthio) 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 (ethylthio) 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1 butyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1 heptyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1 octyl)thio] 1,3,4 oxadiazole 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1 pentyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1 propyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(1,3 dioxalan 2 ylmethyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 bromobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 bromoethyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 butyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 chlorobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 chloroethyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 iodoethyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 methylbenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 pentyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 phenylethyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(2 propyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(3 chlorobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(3 nitrobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(3 phenylpropyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(4 bromobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(4 chlorobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(4 fluorobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(4 nitrobenzyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 [(alkyl/aralkyl)thio] 1,3,4 oxadiazole 1 5 {1 [(4 chlorophenyl)sulfonyl]piperidin 4 yl} 2 mercapto 1,3,4 oxadiazole 1